SpriteShapeSegment contains info of sub-meshes generated by the SpriteShape generator C# Job later fed to SpriteShapeRenderer.
| geomIndex | Geometry index of list of sub-meshes generated by SpriteShape. | 
| indexCount | Index count of SpriteShape sub-mesh. | 
| spriteIndex | Index of sprite that is used to generate segment/corner for this SpriteShapeSegment. | 
| vertexCount | Vertex count of SpriteShape sub-mesh. |